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ad's

 - 7 dictionary results

ad

1[ad]
–noun
1. advertisement.
2. advertising: an ad agency.

Origin:
1835–45; by shortening

ad

2[ad]
–noun Tennis.
1. advantage (def. 5).
2. ad in, the advantage being scored by the server.
3. ad out, the advantage being scored by the receiver.

Origin:
1945–50; by shortening
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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ad 1   (ād)   
n.  An advertisement.
ad 2   (ād)   
n.  An advantage in tennis.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

ad 
1841, shortened form of advertisement. Long resisted by those in the trade, and denounced 1918 by the president of a national advertising association as "the language of bootblacks, ... beneath the dignity of men of the advertising profession."
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: AD
Function: abbreviation
1 Alzheimer's disease
2 average deviation
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

AD abbr.
Latin auris dextra (right ear)

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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